EP1058026A2 - Ressort pneumatique à soufflet roulant - Google Patents

Ressort pneumatique à soufflet roulant Download PDF

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Publication number
EP1058026A2
EP1058026A2 EP00110758A EP00110758A EP1058026A2 EP 1058026 A2 EP1058026 A2 EP 1058026A2 EP 00110758 A EP00110758 A EP 00110758A EP 00110758 A EP00110758 A EP 00110758A EP 1058026 A2 EP1058026 A2 EP 1058026A2
Authority
EP
European Patent Office
Prior art keywords
bellows
bead
piston
rolling
air spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00110758A
Other languages
German (de)
English (en)
Other versions
EP1058026A3 (fr
EP1058026B1 (fr
Inventor
Detlef Wenzel
Manfred Degenhardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ContiTech Luftfedersysteme GmbH
Original Assignee
ContiTech Luftfedersysteme GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ContiTech Luftfedersysteme GmbH filed Critical ContiTech Luftfedersysteme GmbH
Publication of EP1058026A2 publication Critical patent/EP1058026A2/fr
Publication of EP1058026A3 publication Critical patent/EP1058026A3/fr
Application granted granted Critical
Publication of EP1058026B1 publication Critical patent/EP1058026B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/0454—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by the assembling method or by the mounting arrangement, e.g. mounting of the membrane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/05—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/40—Constructional features of dampers and/or springs
    • B60G2206/42—Springs
    • B60G2206/424—Plunger or top retainer construction for bellows or rolling lobe type air springs

Definitions

  • the invention relates to a bellows air spring according to the Preamble of claim 1.
  • Air springs such as those used in vehicle construction for cushioning wheel suspensions, essentially consist of a rolling bellows (air bellows), which is delimited on the one hand by a cover plate (cone plate) and on the other hand by a rolling piston, thus enclosing an air spring volume in its interior.
  • the bellows itself is made of rubber or rubber-like plastic with end fastening beads, such as. B. described in DE-OS 29 05 791.
  • the end of the bellows on the cover plate is usually attached by flanging, which is why the (top) cover plate is also called “flare plate”.
  • the lower edge of the rolling bellows ie the lower bead section, is usually designed as a cone provided with sealing grooves, in order then to be screwed to a multi-part rolling piston provided with a tensioning plate.
  • EP 0 546 385 B1 includes an air bellows a braced sealing bead shown by a flanged edge of a flanged plate upper fastening part is wrapped and tightly clamped.
  • air springs are known, which also end of the rolling bellows facing the rolling piston Flanging is attached.
  • DE-PS 10 39 375 is the lower bead of the air spring bellows with that of the rolling piston firmly connected.
  • the coaxial with the bellows, cylindrical rolling piston runs in a flanged Edge that grips around the bead and this against the Ring edge of a lid presses. This lid is used close the guide body and opposite the roller bellows complete.
  • the flanged edge is around the bead of the Roll bellows laid around.
  • the piston part consists of one piece trained molded body and is by flanging with the Rollbalg connected in that the outer peripheral wall of the Roll-off piston for fastening the facing bellows end is flanged inwards.
  • the corresponding bellows has one from the flanged edge encircled bead-like ring set, which with a Reinforcement insert is provided.
  • the following catalog of requirements has been drawn up to overcome the above-mentioned problems when fastening the bellows to the open rolling piston by flanging:
  • the special design of the bulb-side bead must be such that, during the flanging, the flanged edge contacts the bellows as late as possible in order to prevent the bead from escaping downwards into the free space.
  • the flared gap must already be closed to such an extent that the bead can no longer slip out.
  • the bead must immediately clamp against the inner surface of the contact wall when gripping.
  • the object of the present invention is, based on the prior art available with the Gbm 298 08 109 U1, to design the piston-end bellows in such a way that it can be securely flanged even when the piston is open at the end.
  • the bulb-side bead of the bellows is formed at 45 ° to the horizontal ao, that there are no undercuts on the vulcanization mold or on the product itself, there are no molding and molding difficulties.
  • the bead is thus so dimensionally stable that a rolling piston can then be flanged with it. Bead formations with sealing surface inclinations between 45 ° and 65 ° have proven to be particularly advantageous. Due to the inward flaring process, the bead swings into a 90 ° position to the horizontal.
  • the reduction in diameter in the lower area of the bellows is only to favor the formation of the roll fold necessary when operating the air bellows.
  • Diameter of the bead core and the diameter of the Piston wall coordinated.
  • the bellows air spring 2 shown in FIG. 1 exists essentially from a flexible rubber bellows 4 or rubber-like plastic, a cover plate 6 and a rolling piston 8. At both ends is the Roll bellows 4 each provided with a bead 10, 12.
  • the "Upper" bead 10 is by crimping with the cover plate (Flare plate) 6 connected during the bulb-side bead 12 attached to a flanged edge 30 of the rolling piston 8 is.
  • cover plate 6 and 8 rolling piston Bellows encloses the air spring interior 28.
  • Figs. 2a-c Essential details of the bellows air spring according to the invention are shown in Figs. 2a-c.
  • the in Fig. 2a has bellows 4 shown on one side in longitudinal section bulges at both ends.
  • the upper bead 10 is formed in a conventional manner and is used to attach the bellows 4 to the cover plate (Flaring plate) 6.
  • the lower one, for attachment to the Roll piston 8 provided roll bellows bead 12 is invention-specific to the flange 30 of the open top Rolling piston 8 adapted.
  • the piston shown in Fig. 3 8 shows a cylindrical piston rim 30. This is the condition before beading 12.
  • the bead-shaped thickening of the end of the roll bellows has a sealing surface 14.
  • the bulb-side bead 12 has a bead core (ring body) 24 made of steel or steel wire.
  • the diameter 22 of the bead 12 in the piston area is matched to the diameter 26 of the piston wall.
  • the bead 12 of the rolling bellows 4 does not hook into a pre-flanged piston rim 30.
  • the piston rim 30 is not pre-flanged.
  • the edge 30 is initially cylindrical; it closes only by the flaring process around the bead 12 of the bellows 4.
  • the bead 12 is tightly enclosed by the flanged edge 30 of the rolling piston 8, the piston-side sealing surface 14 of the rolling bellows 4 being at 90 °, based on the "horizontal ", is rotated so that it rests over the entire surface at the upper end of the piston wall (FIG. 2c).
  • the piston rim 30 is deflected inwards by a total of approximately 270 °. This flanging process is carried out with a special tool.
  • the outer surface of the rolling piston 8 is the diameter 22 of the bellows 4 in the bead area less than the other Bellows diameter 20.
  • shock absorber is to be integrated in the air spring 2, so it can be a separate part in the open piston 8th to be built in.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Diaphragms And Bellows (AREA)
  • Vehicle Body Suspensions (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Clamps And Clips (AREA)
  • Sealing Devices (AREA)
  • Glass Compositions (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Joints Allowing Movement (AREA)
EP00110758A 1999-06-01 2000-05-19 Ressort pneumatique à soufflet roulant Expired - Lifetime EP1058026B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19925092A DE19925092C2 (de) 1999-06-01 1999-06-01 Rollbalg-Luftfeder
DE19925092 1999-06-01

Publications (3)

Publication Number Publication Date
EP1058026A2 true EP1058026A2 (fr) 2000-12-06
EP1058026A3 EP1058026A3 (fr) 2003-04-16
EP1058026B1 EP1058026B1 (fr) 2004-11-17

Family

ID=7909885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00110758A Expired - Lifetime EP1058026B1 (fr) 1999-06-01 2000-05-19 Ressort pneumatique à soufflet roulant

Country Status (6)

Country Link
US (1) US6412758B1 (fr)
EP (1) EP1058026B1 (fr)
JP (1) JP4519994B2 (fr)
AT (1) ATE282780T1 (fr)
DE (2) DE19925092C2 (fr)
HU (1) HU224445B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007025771A1 (fr) * 2005-09-02 2007-03-08 Saf-Holland Gmbh Soufflet de la suspension pneumatique
WO2014036316A1 (fr) * 2012-08-29 2014-03-06 Firestone Industrial Products Company, Llc Eléments d'extrémité et blocs ressorts à gaz les contenant

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10135063B4 (de) * 2001-07-18 2005-07-14 Progress-Werk Oberkirch Ag Luftfedertopf sowie Verfahren zur Herstellung desselben
DE10212898B4 (de) * 2002-03-22 2004-03-04 GKN Löbro GmbH Rollbalg und Rollbalganordnung
US7322567B2 (en) * 2004-05-20 2008-01-29 Arvinmeritor Technology, Llc Air spring assembly
US20060208403A1 (en) * 2005-03-16 2006-09-21 Arvinmeritor Technology, Llc Air spring assembly with flexible can
EP2488770B1 (fr) * 2009-10-14 2022-12-14 Firestone Industrial Products Company, LLC Élément d'extrémité, ensemble ressort à gaz et procédé
AU2011299113B2 (en) 2010-09-10 2014-11-13 Hendrickson Usa, L.L.C. Air spring for a heavy-duty vehicle with damping features
US9139061B2 (en) 2013-04-03 2015-09-22 Watson & Chalin Manufacturing, Inc. Vehicle suspension system with reservoir for air spring damping

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039375B (de) 1955-07-11 1958-09-18 Firestone Tire & Rubber Co Luftfeder, insbesondere zur Abfederung von Kraftfahrzeugen
DE2905791A1 (de) 1979-02-15 1980-08-28 Continental Gummi Werke Ag Rollbalg fuer fahrzeug-luftfederungen
EP0546385A1 (fr) 1991-12-13 1993-06-16 Continental Aktiengesellschaft Ressort pneumatique pour véhicules avec un soufflet élastomèrique
DE29808109U1 (de) 1998-05-06 1998-07-09 Trenkamp & Gehle GmbH, 49413 Dinklage Luftfeder

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB779809A (en) * 1954-12-14 1957-07-24 Continental Gummi Werke Ag Improvements in or relating to pneumatic shock absorbers
US2874458A (en) * 1955-10-10 1959-02-24 Firestone Tire & Rubber Co Method of making an air spring
BE561179A (fr) * 1956-10-02
US3013920A (en) * 1957-03-01 1961-12-19 Us Rubber Co Method of making a flexible diaphragm for use in fluid springs
US3030252A (en) * 1957-03-01 1962-04-17 Us Rubber Co Methods of making flexible diaphragms for use in fluid springs
US2985445A (en) * 1957-06-20 1961-05-23 Gen Motors Corp Pneumatic spring control device
DE1175038B (de) * 1962-03-05 1964-07-30 Phoenix Gummiwerke Ag Dichtung an Wuelsten fuer Luftfederrollbaelge
DE2108694C2 (de) * 1971-02-24 1986-03-13 Continental Gummi-Werke Ag, 3000 Hannover Luftfederbalg
JPS60155024A (ja) * 1984-01-23 1985-08-14 Sumitomo Electric Ind Ltd 空気ばね用ベロ−ズ
US4749345A (en) * 1985-06-25 1988-06-07 The Goodyear Tire & Rubber Company Mold for airspring rubber membrane
US4787608A (en) * 1987-01-15 1988-11-29 The Firestone Tire & Rubber Company Nylon bead reinforcement ring for fluid pressure devices
JPH0734771Y2 (ja) * 1991-06-28 1995-08-09 日信工業株式会社 負圧ブースタ
US5382006A (en) * 1993-09-29 1995-01-17 The Goodyear Tire & Rubber Company Airspring piston and airspring assembly
JPH08177938A (ja) * 1994-12-26 1996-07-12 Fukoku Co Ltd ダイヤフラム部材、このダイヤフラム部材の製造方法およびこのダイヤフラム部材を使用した空気ばね
US5580033A (en) * 1995-04-07 1996-12-03 The Goodyear Tire & Rubber Company Bellows type air spring and method of making same
US5671907A (en) * 1995-12-07 1997-09-30 The Goodyear Tire & Rubber Company Method of attachment of flexible member to stamped steel piston

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039375B (de) 1955-07-11 1958-09-18 Firestone Tire & Rubber Co Luftfeder, insbesondere zur Abfederung von Kraftfahrzeugen
DE2905791A1 (de) 1979-02-15 1980-08-28 Continental Gummi Werke Ag Rollbalg fuer fahrzeug-luftfederungen
EP0546385A1 (fr) 1991-12-13 1993-06-16 Continental Aktiengesellschaft Ressort pneumatique pour véhicules avec un soufflet élastomèrique
DE29808109U1 (de) 1998-05-06 1998-07-09 Trenkamp & Gehle GmbH, 49413 Dinklage Luftfeder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007025771A1 (fr) * 2005-09-02 2007-03-08 Saf-Holland Gmbh Soufflet de la suspension pneumatique
AU2006286719B2 (en) * 2005-09-02 2009-06-18 Saf-Holland Gmbh Pneumatic suspension bellow
CN100510460C (zh) * 2005-09-02 2009-07-08 塞夫·霍兰德有限公司 气动悬架波纹管
US8240643B2 (en) 2005-09-02 2012-08-14 Saf-Holland Gmbh Pneumatic suspension bellows
WO2014036316A1 (fr) * 2012-08-29 2014-03-06 Firestone Industrial Products Company, Llc Eléments d'extrémité et blocs ressorts à gaz les contenant
US9556922B2 (en) 2012-08-29 2017-01-31 Firestone Industrial Products Company, Llc End members and gas spring assemblies including same

Also Published As

Publication number Publication date
DE19925092C2 (de) 2003-04-10
ATE282780T1 (de) 2004-12-15
DE19925092A1 (de) 2001-01-11
HUP0002086A2 (hu) 2001-04-28
US6412758B1 (en) 2002-07-02
DE50008641D1 (de) 2004-12-23
JP2001012526A (ja) 2001-01-16
HU0002086D0 (en) 2000-08-28
EP1058026A3 (fr) 2003-04-16
HU224445B1 (hu) 2005-09-28
HUP0002086A3 (en) 2003-08-28
EP1058026B1 (fr) 2004-11-17
JP4519994B2 (ja) 2010-08-04

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